LSAT 105 – Section 2 – Question 08

LSAT 105 - Section 2 - Question 08

February 1999

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT105 S2 Q08
+LR
+Exp
Method of reasoning or descriptive +Method
A
8%
159
B
82%
166
C
9%
158
D
0%
153
E
1%
156
130
144
158
 +Medium 145.978 +SubsectionMedium

Millions of female bats rear their pups in Bracken Cave. Although the mothers all leave the cave nightly, on their return each mother is almost always swiftly reunited with her own pup. Since the bats’ calls are their only means of finding one another, and a bat pup cannot distinguish the call of its mother from that of any other adult bat, it is clear that each mother bat can recognize the call of her pup.

Summarize Argument
The author concludes that every mother bat is able to recognize the call of her pup. As evidence, the author states that a bat’s calls are the only means of finding one another, and that a bat pup cannot distinguish calls between adult bats.

Describe Method of Reasoning
The author concludes that a mother bat must be able to recognize the call of her pup by eliminating the possibility of a bat pup recognizing the call of a mother bat.

A
derive a general conclusion about all members of a group from facts known about representative members of that group
The author does not provide facts about representative members of a group. While the author’s conclusion is a general conclusion applying to all mother bats, the author’s premises do not include facts about a specific set of mother bats.
B
establish the validity of one explanation for a phenomenon by excluding alternative explanations
The alternative explanation the author excludes is the possibility of a bat pup recognizing its mother’s call. Since this is not a possibility, the author concludes that the other possibility of a mother bat recognizing its pup’s call is a valid explanation.
C
support, by describing a suitable mechanism, the hypothesis that a certain phenomenon can occur
The author does not describe how mother bats are able to recognize a pup’s call. Rather, the author states this phenomenon as a matter of fact.
D
conclude that members of two groups are likely to share a certain ability because of other characteristics they share
The author only addresses and comes to a conclusion about one group of animals. The author does not make comparisons between bats and any other animal.
E
demonstrate that a general rule applies in a particular case
The author does not provide a particular case that illustrates the conclusion. Rather, the author’s argument is stated generally and theoretically.

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LSAT PrepTest 105 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Reading Comprehension

Section 4 - Logical Reasoning

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